The SKYRC D400 is a 2-channel charger with two independant circuits that can charge two different types of batteries at the same time. It also supports the power distribution in AC mode in order to maintain a maximum charging power and to shorten the charging time.The total power for channel A and channel B is 400W. For example, the charging power for channel 1 can be set to 300W, so that 100W remains for channel 2.The Ultimate Duo 400W also offers a 150 watt DC power supply on channel 2, which converts 100-240V AC to 6-15V DC. This can be used to supply 12V consumers.Where channel 2 can only be used as a charger or as a power supply, not both functions simultaneously.The device can also be used for the following additional functions: Lithium battery voltage display, internal resistance measurement.The SKYRC D400 is a powerful, microprocessor-controlled charging/discharging station with battery management for use with all common battery types with integrated balancer for up to 7S LiPo,